I have several volumes from an author who postulated somewhere around the near mid 20th century that all cultures follow a cyclic pattern that results in their own demise.
He predicted that Western Civ would fall and events are proving that he is pretty much on the mark, but we shall see.
I’ll look up his name when I get a chance.
Quite interesting - and depressing.
Spengler, maybe? Sounds like the philosophy behind his “Decline of the West.”
Was it Spengler or Toynbee?